Pro Grade Mini Boring Bar With 0.378 Inch Bore And One Half Inch Shank, 95 Degree Indexable Tool For TCMT Inserts, Right Hand Cutting, 4 Inch Overall Length, 404-2440 Series, 520 Insert Size, Steel Shank With Insert Screw

Mini boring bar with 0.378 bore and 1/2 shank, 95° indexable ✔️ Right-hand cutting, 4" overall length, 0.378" bore, 520 insert

This compact mini boring bar is designed for precision internal boring on small-diameter workpieces. It uses a steel shank with an interchangeable insert system compatible with TCMT/TCGW/TCGX styles and is built for right-hand cutting. The 404-2440 series delivers a compact, rigid tool suitable for tight milling and CNC operations.

✅ Bore diameter: 0.378 in
✅ Shank diameter: 1/2 in
✅ Overall length: 4 in
✅ Insert style: TCGW, TCGX, TCMT
✅ Insert size: 520
✅ Side cutting angle: 95°
✅ Cutting direction: Right Hand
✅ Shank material: Steel
✅ Insert holding method: Insert Screw

💡 What is a mini boring bar used for in precision machining? - Handy for finishing internal bores on small parts with tight tolerances. - Ideal for use with 0.378 bore and 520 insert for accurate results. - Great in CNC or manual setups where a compact, rigid steel shank helps maintain alignment.

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